Okay, so I installed F10 on my T30 a couple of years ago and haven't touched it since.

I'm trying to upgrade to F16 and was going to do it one version at a time, so I ran preupgrade to go to F11. At one point preupgrade told me there wasn't enough room in my /boot directory, and suggested that I clean out old kernels, so I copied three 3.5Mb files to a folder on the desktop, removed them from /boot and continued with the preupgrade.

All was running smoothly until it comes up after the reboot, when it gives me

Code:

Error 15: File not found
Press any key to continue

Pressing a key spits me out into a sort of boot menu where I have only one option: "Upgrade to Fedora 11 (Leonidas).

Literally no idea what to do. Extreme newbie (read: needs to be told what to type and where to type it).